Thanks. However, that thread really says one thing - put everything in session scope and don't worry about it :)
But how does one do these things: A. Get the user back the input form -- Is it by just finding a 'failure' forward that points to the original JSP with the form? B. Display the error message -- I guess the errors are saved either in Session or Request, ok. C. Make sure that all possible fields are pre-populated with data that the user already entered -- Is this up to the JSP develop to do, perhaps with the help of some Struts JSP tags or does this happen automagically? D. The pull-down in the form has that same list of countries -- Yes, a developer could just save this in Session scope, but if that is not desired, then how is this re-retrieved if the user it forwarded to a JSP? The user would need to be re-sent to the original action that retrieved the list, no? E. The user is not prompted with 'Do you want to re-POST' dialog -- Does this happen automagically? Thanks, Otis ---- On Wed, 19 Feb 2003, Robert Taylor ([EMAIL PROTECTED]) wrote: > http://www.mail-archive.com/[email protected]/msg58515.html > > > -----Original Message----- > > From: otisg [mailto:[EMAIL PROTECTED]] > > Sent: Wednesday, February 19, 2003 12:39 PM > > To: [EMAIL PROTECTED] > > Subject: handling form errors in Actions, returning to form, > > prepopulating them without re-POSTING > > > > > > Hello, > > > > We are starting to use Struts and are > > wondering how Struts users handle scenarios > > such as this one: > > > > 1. /ShowForm action gets called, mapped to > > ShowFormAction. > > ShowFormAction pulls a list of countries > > from the DB (for ex.), > > stick that list in the HTTP request, and > > 'forwards' to 'ok', > > which is a JSP with a form that consists > > of blank form fields > > and a pull-down with countries that it > > gets from the HTTP req. > > > > 2. A user fills the form, but forgets a > > required field before he > > submits the form by POSTing to > > /SubmitForm action. > > > > 3. /SubmitForm is mapped to SubmitFormAction > > which detects a > > missing required field. Is puts error > > messages in an instance > > of ActionErrors. It now needs to forward > > to something other > > than 'ok'. > > > > What we want to happen at this point is: > > > > A. Get the user back the input form > > B. Display the error message > > C. Make sure that all possible fields are > > pre-populated with > > data that the user already entered > > D. The pull-down in the form has that same > > list of countries > > E. The user is not prompted with 'Do you > > want to re-POST' dialog > > > > How can this be done? > > > > In our Struts config we have: > > > > <!-- gets a list of countries from DB, > > puts them in Request, > > forwards to 'ok' --> > > <action path= "/ShowForm" > > type= > > "net.wgen.ampng.action.ShowFormAction" > > scope= "request"> > > <forward name= "ok" > > path="/WEB-INF/v/form-ok.jsp"/> > > <forward name= "failure" > > path="/WEB-INF/v/form-not.jsp"/> > > </action> > > > > <!-- gets form data and processes it --> > > <action path= "/SubmitForm" > > type= > > "net.wgen.ampng.action.SubmitFormAction" > > scope= "request" > > validate= "true" > > name= "myForm" > > input= "/WEB-INF/v/form.jsp"> > > <forward name= "ok" > > path="/WEB-INF/v/ok.jsp"/> > > <forward name= "failure" > > path="/WEB-INF/v/form.jsp"/> > > </action> > > > > > > What is the best way to handle this and > > achieve A, B, C, D, and E that I mentioned > > above? > > > > If SubmitFormAction encounters an error > > (e.g. a missing required field), what should > > it forward to? The original JSP in 'input' > > attribute? The JSP mapped to 'failure' (the > > same JSP with the original form)? > > Should it forward/chain to another Action > > that redirects back to the original form? > > (but that would lose the form data + error > > messages in the Request, wouldn't it?) > > Something else? > > Does the JSP with the form need to contain > > the logic for pulling errors + form data > > from the request, if it exists? > > > > This seems like a situation that would be > > very common and I feel that Struts has some > > elegant way for handling this. > > > > Thank you, > > Otis ________________________________________________ Get your own "800" number Voicemail, fax, email, and a lot more http://www.ureach.com/reg/tag --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
